Engineering Interview Questions
Questions Answers Views Company eMail


What is the max demand on your transformer and your company?

Bhel, JLL, MNC, HPL, Lemon Tree, Tata Power, TATA, Torrent Pharma, IOCL, Core Consultants,

7 21558

What is the power factor you maintain at ur organization?

Microsoft, Wheels India, Cummins, Powergear, Suncity Strips, KTC, Secure Meters,

39 41925




How do you connect the capacitors on polyphase circuits?

L&T, Transco,

9 16686

What is the make of breakers, transformers, generators? What are their capacities and ratings?

Bharat Bijlee, GHPPL,

2 12747

Is your generator is automated or manual if so do you know the circuits?

RRB,

5 10277

What are the different sizes of cables for H.T and L.T side of supply?

Bhel, Karthik Industries, Lanco, Torrent Power, Shilpa Electrical Engineers, Nedco, BSES, TATA,

7 41545

Do you know how to measure the earth resistance? if so explain it

MSEB, ABB, JLL, Dalkia, Genpact, Sical, L&T, University Exams, IOCL, College School Exams Tests, Saraca, Electrical, Telecommunications, BridgeStone, Dalmia Group, DEC, HEC,

39 110998

What is meant by H.R.C fuse?

Taj Group, Gas Projects, GSCE,

39 147478

What are the different protection systems takes place on control panel board?

6 12746

What are the different ratings of the fuse units for different distributions at your organization?

UPPCL, TATA,

1 6161

What are the different protection systems used to protect the transformer internally and externally?

15 27954

What is the rating of your substation and what are the different types of substations?

Bhel, UPPCL, NTPC,

5 22908

What should be the earthing resistance of an industrial substation and also What should be the house hold earthing resistance?

TATA, Pharma, TAAT, Jindal,

20 64131

How do you maintain the earthing resistance?

Birla, Ford, JLL,

11 24029







Un-Answered Questions { Engineering }

why top layer of block work shoud be full size if any cut block adjustable than another layer?

780


How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?

3191


today software are down how u are u going to clear this?

679


following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

764


How many turns are there in primary winding? (In Transformer)

264


WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

2422


234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

629


a sewer which receives the discharge of no. of house sewer is called house sewer lateral sewer intrcepting sewer sub-main sewer

844


pls send the technical question paper

889


psc girder detail

1046


The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

586


T unionĀ support factor

481


Please explain me about Relay curves and their sources to read ?

448


what is mean by descripiency relay? & wht is its ansi code?

1384


how to calculate air load of a existing/ new plant before installing a air compressor.

610